Your cooking method drives costs more than you realize. Steaming requires only steam and energy, while frying demands expensive oil replacement. Master the math behind both methods and discover which truly maximizes profit.
Why cooking method impacts your food cost
Most kitchens focus solely on ingredient costs but overlook preparation expenses. That €4.50 fish portion jumps to €5.20 when fried, yet stays at €4.80 steamed. Multiply this across thousands of portions annually, and you're looking at hundreds of euros in hidden costs.
⚠️ Heads up:
Don't forget oil replacement costs in your frying calculations. Most kitchens underestimate frying expenses because they ignore this crucial factor.
Cost factors per cooking method
Steaming:
- Energy costs (gas or electricity for steam)
- Water (minimal)
- No extra ingredients needed
Frying:
- Frying oil (replaced after X portions)
- Energy costs (heating and maintaining oil temperature)
- Oil loss through evaporation
- Extra waste disposal (used oil)
Calculate frying costs
Oil represents your biggest frying expense. Each liter costs roughly €2.50 and handles 40-60 portions, depending on your product type. After managing kitchen operations for nearly a decade, I've seen restaurants miscalculate this consistently.
💡 Example frying costs:
Frying 50 fish portions before oil replacement:
- 15 liters of frying oil: €37.50
- Energy costs (heating + maintaining temperature): €8.00
- Oil loss through evaporation: €2.50
Total: €48.00 for 50 portions = €0.96 per portion
Calculate steaming costs
Steaming centers around energy expenses. You generate steam for cooking but avoid costly replaceable ingredients.
💡 Example steaming costs:
Steaming 50 fish portions:
- Gas for steam: €12.00
- Water: €1.50
- No replacement costs
Total: €13.50 for 50 portions = €0.27 per portion
Annual cost difference breakdown
That €0.69 per portion difference (€0.96 - €0.27) appears minor but compounds rapidly. At 100 portions weekly, you'll spend €3,588 extra annually. That's enough to cover an additional employee for a full month.
💡 Annual calculation example:
Restaurant serving 100 fish portions weekly:
- Difference per portion: €0.69
- Per week: 100 × €0.69 = €69
- Per year: €69 × 52 = €3,588
Potential steaming savings: €3,588 annually
Why frying might still make financial sense
Higher costs don't automatically disqualify frying:
- Speed: Frying typically outpaces steaming
- Taste: Customers pay premiums for crispy textures
- Menu pricing: If you charge €2 more for fried items, overall profit increases
Focus on which method generates maximum profit after subtracting all expenses, not which costs least upfront.
How do you calculate the cost difference between steaming and frying?
Calculate frying costs per portion
Add up: oil costs divided by number of portions, plus energy costs for heating and maintaining temperature. Don't forget to factor in oil loss through evaporation.
Calculate steaming costs per portion
Add the energy costs for generating steam plus minimal water costs. Steaming has no replacement costs like oil.
Compare and calculate the difference on an annual basis
Subtract steaming costs from frying costs per portion. Multiply by your weekly volume and 52 weeks for the annual difference.
✨ Pro tip
Track exactly how many portions each oil batch produces over 30 days. This number varies significantly by dish type and kitchen conditions, giving you the most accurate per-portion frying costs.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
How often should I replace frying oil?
Fish and breaded products contaminate oil faster than items like fries. Generally, oil maintains quality for 40-60 portions before requiring replacement.
Should I include energy costs in these calculations?
Absolutely - energy represents a substantial portion of preparation expenses. Frying demands more energy because you're heating and maintaining large oil volumes at consistent temperatures.
What if customers pay more for fried dishes?
Include that premium in your profit analysis. If fried food commands €2 extra but costs €0.70 more to prepare, you still net €1.30 additional profit per portion.
How do I measure exact steaming energy costs?
Review your gas bill and divide by total cooking hours, or install an energy meter on your steaming equipment for weekly consumption tracking. This gives you precise per-portion costs.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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